Physicochemical characterization of unique unifloral honey: Euphorbia resinifera

被引:16
|
作者
Moujanni, A. [1 ]
Partida, L. [2 ]
Essamadi, A. K. [1 ]
Hernanz, D. [3 ]
Heredia, F. J. [4 ]
Terrab, A. [2 ]
机构
[1] Hassan First Univ, Fac Sci & Technol, Lab Biochem & Neurosci, Appl Biochem & Toxicol Team, Settat, Morocco
[2] Univ Seville, Dept Biol Vegetal & Ecol, Apdo 1095, E-41080 Seville, Spain
[3] Univ Seville, Dept Quim Analit, Fac Farm, Seville, Spain
[4] Univ Seville, Food Colour & Qual Lab, Dept Nutr & Food Sci, Fac Farm, Seville, Spain
关键词
Morocco; Euphorbia resinifera; physicochemical parameters; PCA; SDA; MINERAL-CONTENT; PALYNOLOGICAL CHARACTERIZATION; ELECTRICAL-CONDUCTIVITY; CLASSIFICATION; PARAMETERS; NORTHWEST; COLOR;
D O I
10.1080/19476337.2017.1333529
中图分类号
TS2 [食品工业];
学科分类号
0832 ;
摘要
The physicochemical characteristics of Euphorbia resinifera honey were studied. Considering the low water content, the majority of the honeys presented a proper maturity. The values of acidity revealed the absence of inappropriate fermentation, while the low values of hydroxymethylfurfural (0.4-16.48mg/kg) were suitable for of unprocessed honeys. The average values for electrical conductivity and ashes were 451 mu S/cm and 1.6g/kg, respectively. As for the mineral content, the K was the most abundant element; Ca, Na, Mg, P, S, and Si are all present in differing quantities in the honeys. On the other hand, Principal Components Analysis (PCA) and Stepwise Discriminant Analysis (SDA) were applied to distinguish between three related Euphorbia honey types. PCA showed that the cumulative variance of the two first factors explained approximately 53%. The results of SDA showed that variables with a higher discriminant power were K, C*(ab) and a*, and 100% of the samples were properly classified in their corresponding class. RESUMENLos parametros fisicoquimicos de 29 de mieles monoflorales de Euphorbia resinifera fueron estudiadas. 24 parametros, incluyendo humedad, pH, acidez (libre, lactonica y total), HMF, cenizas, conductividad electrica, monosacaridos (glucosa y fructosa), contenido mineral y parametros cromaticos fueron analizados. Desde el punto de vista de su calidad las mieles fueron acordes con la legislacion Europea en cuanto a contenido en agua, acidez y HMF. Los valores de cenizas y conductividad electrica fueron 1,6g/kg y 451S/cm, respectivamente. El contenido en minerales mostro que el K es el elemento mas abundante; mientras que Ca, Na, Mg, P, S y Si se presentaron en contenidos intermedios. En cuanto a los valores de los parametros del color fueron tipicos de mieles ambar claras. Se ha realizado un analisis estadistico multivariante a los datos obtenidos para diferenciar tres especies de mieles de Euphorbia. El analisis discriminante permite diferencia las mieles por su origen botanico siendo el contenido en K, C*(ab) y la variable cromatica a* las variables con mayor poder discriminate, siendo el 100% de las muestras clasificadas correctamente en su grupo.
引用
收藏
页码:27 / 35
页数:9
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